Eleven Posts You May Have Missed This Week

This week on newyorker.com, Mark Singer writes about the photojournalist James Foley’s choice to return to a war zone after escaping captivity, while other writers explore the science behind sleep deprivation and the literature of Alzheimer’s disease. We also learn more about the vocoder—part military technology, part musical instrument—in an interview- and music-filled video.

Mark Singer writes about the photojournalist James Foley’s return to a war zone after escaping captivity in Libya—for reasons that were modest, but not small.